<?php

/**
 * @file
 * AddThis module installation/update hooks.
 */

/**
 * Implements hook_install().
 * 
 */
function addthis_install() {
  // Module needs to load after Google Analytics (weight = 0) so we can execute
  // scripts after the tracker object is loaded.
  db_query('UPDATE {system} SET weight=1 WHERE type="module" AND name="addthis"');
}

/**
 * Implements hook_uninstall().
 */
function addthis_uninstall() {
  // Remove cached JavaScript file and cache directory.
  addthis_clear_js();
  $directory = file_directory_path() .'/addthis';
  @rmdir($directory);
  
  // Remove database artifacts left by the module.
  db_query('DELETE FROM {blocks} WHERE module = "addthis"');
  cache_clear_all('addthis:', 'cache', TRUE);
  
  // Remove module variables.
  $result = db_query("SELECT name FROM {variable} WHERE name LIKE 'addthis_%'");
  while ($var_name = db_result($result)) {
    variable_del($var_name);
  }
}

/**
 * Convert 2.x configuration settings to 3.x equivalents.
 */
function addthis_update_6300() {
  $ret = array();
  variable_set('addthis_widget_type', 'addthis_button');

  // Convert widget settings.
  $addthis_config = array();
  $addthis_config['services_compact'] = variable_get('addthis_options', '');
  $addthis_config['ui_cobrand'] = variable_get('addthis_brand', '');
  $ui_header_color = trim(variable_get('addthis_logo_color', ''));
  if (!empty($ui_header_color)) {
    $addthis_config['ui_header_color'] = '#' . $ui_header_color;
  }
  $ui_header_background = trim(variable_get('addthis_logo_background', ''));
  if (!empty($ui_header_background)) {
    $addthis_config['ui_header_background'] = '#' . $ui_header_background;
  }
  $addthis_config['ui_hover'] = variable_get('addthis_dropdown_disabled', 0);
  $addthis_config['ui_offset_left'] = variable_get('addthis_offset_left', '');
  $addthis_config['ui_offset_top'] = variable_get('addthis_offset_top', '');
  $addthis_config['ui_use_css'] = TRUE;
  $addthis_config['data_use_cookies'] = TRUE;
  $addthis_config['username'] = variable_get('addthis_username', '');
  variable_set('addthis_config', $addthis_config);

  // Convert node type visibility settings.
  $types = array_keys(node_get_types());
  $addthis_node_types = array();
  foreach ($types as $type) {
    $addthis_node_types[$type] = (variable_get('addthis_nodetype_' . $type, 0)) ? $type : 0;
    variable_del('addthis_nodetype_' . $type);
  }
  variable_set('addthis_node_types', $addthis_node_types);
  
  // Remove remaining obsolete 6.x-2.x variables.
  $remove = array(
    'addthis_brand',
    'addthis_disable_flash',
    'addthis_dropdown_disabled',
    'addthis_image',
    'addthis_image_attributes_alt',
    'addthis_image_attributes_class',
    'addthis_image_height',
    'addthis_image_secure',
    'addthis_image_width',
    'addthis_logo',
    'addthis_logo_background',
    'addthis_logo_color',
    'addthis_offset_left',
    'addthis_offset_top',
    'addthis_options',
    'addthis_username',
    'addthis_widget_version',
  );
  foreach ($remove as $variable) {
    variable_del($variable);
  }
  
  // Disable unsupported modules from the original 6.x-3.x-dev releases.
  module_disable(array('at_cck_field', 'at_content_type', 'at_export', 'at_taxonomy', 'at_visibility'));
  drupal_uninstall_module('at_cck_field');
  drupal_uninstall_module('at_content_type');
  drupal_uninstall_module('at_export');
  drupal_uninstall_module('at_taxonomy');
  drupal_uninstall_module('at_visibility');
  if (db_table_exists('at_visibility_nodelist')) {
    db_drop_table($ret, 'at_visibility_nodelist');
  }
  
  // Module weight must be greater than Google Analytics, which is 0.
  $ret[] = update_sql("UPDATE {system} SET weight=1 WHERE type='module' AND name='addthis'");
  
  return $ret;
}

/**
 * Convert obsolete "icon_32x32" variable to use "addthis_toolbox_classes".
 * Move cache_js setting out of addthis_config.
 * Also force a menu rebuild to expose new administration pages.
 */
function addthis_update_6301() {
  $ret = array();
  $config = variable_get('addthis_config', array('ui_use_css' => TRUE, 'data_use_cookies' => TRUE,));
  if ($config['icon_32x32']) {
    variable_set('addthis_toolbox_classes', 'addthis_32x32_style');
  }
  if ($config['cache_js']) {
    variable_set('addthis_cache_js', 1);
  }
  menu_rebuild();
  return $ret;
}

/**
 * Convert "username" values to "pubid" values.
 */
function addthis_update_6302() {
  $ret = array();
  $config = variable_get('addthis_config', array('ui_use_css' => TRUE, 'data_use_cookies' => TRUE,));
  if ($config['username']) {
    $config['pubid'] = $config['username'];
    unset($config['username']);
    variable_set('addthis_config', $config);
  }
  return $ret;
}